My heat experiment...

Discussion in 'Incubating & Hatching Eggs' started by cozycritters, Dec 12, 2008.

  1. cozycritters

    cozycritters Chillin' With My Peeps

    Mar 4, 2008
    Tucson, Arizona
    So, I had three thermometers reading three different temps, ranging from 102 degrees to 95. So, I put the oven on 200, let it preheat, and stuck them all in the oven together in a pan on a blanket.

    My expensive ones continued to say low numbers. My only accurate thermometer was the (non-digital) one that came with my hovabator! Go figure!

    Anyone else use this method to figure out which thermometers are being accurate?
  2. waynesgarden

    waynesgarden Feathers of Steel

    Mar 30, 2008
    Oxford County
    Curious how do you know your oven temp is accurate?

  3. silkiechicken

    silkiechicken Staff PhD Premium Member

    Yeah... your oven could be off, and 200 is pretty high for a weather/bator/medical thermometer to read correctly.

    Ice water test or boiling water test (if thermometers can reach that high) is more accurate, since the oven is based on it's own who knows how accurate thermometer and who hows how bad of hysteresis thermostat.
  4. jimnjay

    jimnjay Chillin' With My Peeps

    Jan 11, 2007
    Bryant Alabama
    I always test mine against a mercury medical thermometer. I put it in the incubator and wait till it gets to 100 degrees exactly and that can take awhile. Once that is done then put you digital thermometers in with it leave them there to make sure temperatures are stable again. You can then record how much the difference is and use the one that is off by making an adjustment.

    I recently tested my thermometers against one another and found a 4 degree difference but after leaving them for a day the difference was only 1 degree. It is very frustrating. I would not use the oven to test your thermometer, 200 degrees is way to hot. My thermometers say they are accurate from 32 to 122 degrees F.
  5. jrtpro

    jrtpro Out Of The Brooder

    Mar 28, 2008
    Milan, GA
    I am using the mercury thermometer that came with my TX-7 and I like it a lot better than any I have used before.
  6. deerman

    deerman Rest in Peace 1949-2012

    Aug 24, 2008
    Southern Ohio
    Quote:I also use a Medical thermometer they read to .1 degree.

    They check to the daily high, then compare to the daily high on the Acurite.

    You can alway use the medical thermometer to make sure the incubator temp. does not go over 99.5. HIGH TEMP. ARE A KILLER.
  7. deerman

    deerman Rest in Peace 1949-2012

    Aug 24, 2008
    Southern Ohio
    Most oven are not accurate to the .1 degree. My guess you would be lucky if they are accurate within + or - 5 degree

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